利用添加乙醇增加Phaffiar hodozyma虾青素产量(英文)  

Increased Production of Astaxanthin of Phaffia rhodozyma with Addition of Ethanol

作　　者：朱明军[1] 梁世中[1] 陈峰[2] 姜悦[2] 

机构地区：[1]华南理工大学食品与生物工程学院,广东广州510640 [2]香港大学植物学系

出　　处：《华南理工大学学报（自然科学版）》2001年第10期61-64,共4页Journal of South China University of Technology(Natural Science Edition)

基　　金：广东省自然科学基金资助项目 (990 6 71)~~

摘　　要：研究了摇瓶中乙醇对Phaffiarhodozyma细胞生长和虾青素积累的影响 .乙醇的添加增加了虾青素产量 ,但抑制了细胞生长 .在细胞生长的不同阶段添加乙醇均能增加虾青素产量 ,差别不显著 .为提高虾青素产量 ,最佳乙醇添加浓度为 3g·L- 1.添加 3g·L- 1乙醇时 ,得到 3475 μg·L- 1和 4 19μg·g- 1的虾青素产量和含量 ,分别比对照提高了 12 %和 11% .该研究提供了一种简单而廉价的增加虾青素产量的方法 .The effects of ethanol on cell growth and astaxanthin accumulation of Phaffia rhodozyma were investigated in flasks. The addition of ethanol promoted astaxanthin production while inhibiting cell growth. Addition of ethanol in different growth phases could increase astaxanthin production and made no significant difference. The optimum addition concentration of ethanol for astaxanthin production was 3 g·L -1 . The highest yield of astaxanthin and astaxanthin content were 3 475 μg·L -1 and 419 μg·g -1 respectively at 3 g·L -1 ethanol, which increased by 12% and 11% compared with 3 094 μg·L -1 and 377 μg·g -1 without ethanol. This study provides a simple and inexpensive means to increase astaxanthin production in industrial fermentations.

关 键 词：乙醇 虾青素 Phaffia rhodozyma 产量 

分 类 号：TQ929[轻工技术与工程—发酵工程]